MDC 1200
Alignment Procedure
Conclusion
28
Table 18 Signalling Deviation
Channel Spacing
(kHz)
25 / 30
20 (VHF/UHF)
20 (821-824, 866-869)
12.5
6. Press F6 again to dekey the radio.
7. Press F8 to program the softpot value; press F10 to return to the
SIGNALLING menu.
1. From the SERVICE menu, press F4 to select SIGNALLING
alignment.
2. Press F4 to select the MDC softpot.
3. Press F6 to key the radio on the test frequency. The screen will
indicate that the radio is transmitting.
4. Measure the MDC deviation on your service monitor.
5. Use the UP/DOWN arrow keys to adjust the MDC deviation per
Table 18.
6. Press F6 again to dekey the radio.
7. Press F8 to program the softpot value; press F10 twice to return to
the SERVICE menu.
The radio alignment procedure is now complete; the radio may be
disconnected and returned to service.
High
DTMF
Speed
3.05-3.45
2.5-3.5
2.44-2.76
2.0-2.8
2.44-2.76
2.0-2.8
1.55-1.85
1.40-1.75
Single
MDC
Tone
3.40-3.75
3.0-4.0
2.6-3.0
2.4-3.2
2.6-3.0
2.4-3.2
1.640-1.875
1.5-2.0